Midnight Ash: Slatestone Flat Panel: 15 1/2" high, 43" wide, 1 3/4" thick: 4 pieces per box: 16.4 sqft coverage per box: sold by the full boxProduct Description The Midnight Ash Slatestone Flat Panel gives your wall a stacked stone finish without weight or mess. Its all clean lines and charcoal tones, with a textured surface that looks sharp in just about any setting. Each box comes with four panels that cover around 16 square feet. Theyre lightweight, lock into place, and can be installed indoors or out. Just start with a metal starter strip and screw them into place. You dont need any